<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        const school = {
            name:'尚硅谷',
            cities:['北京','上海','深圳','武汉'],
            xueke:['前端','Java','大数据','运维']
        }

        //获取对象所有的键
        console.log(Object.keys(school));

        //获取对象所有的值
        console.log(Object.values(school));
        //entries  方便创建Map
        console.log(Object.entries(school));
        //创建Map
        const m =new Map(Object.entries(school));
        console.log(m);
        
        //对象属性的描述对象
        console.log(Object.getOwnPropertyDescriptor(school));

        const obj = Object.create(null,{
            name:{
                //设置值
                value:"尚硅谷",
                //属性特性
                writable:true,
                configurable:true,
                enumerable:true
            }
        })



    </script>
</body>
</html>